The iPhone and iPad have different usb cable adapters for charging the devices. I wanted to know what happens if I use the iPad charger for the iPhone or vice-versa. Are the adapters designed specifically for each device? Or can I just carry one adapter for both devices? Please help me out here. Thanks
What happens? It charges your iPhone/iPod faster. The Apple website lists the iPad charger (10w) as a compatible charger for all iPads, iPhones and iPods.
The same is true of the iPhone/iPod charger... but it only puts out 5w, so it won't charge the iPad, even though it is compatible... (technically, it does charge the iPad, but so slowly that even having the screen on draws more power than the 5w charger can "feed" it.)